Marijuana Tetrahydrocannabinol THC Ganja Test ( Drugs Of Abuse ) - Urine
Also Known As
Test Parameters Included
- Urine THC-COOH (11-nor-9-carboxy-THC) Metabolite Concentration (ng/mL) – screening cutoff 50 ng/mL, confirmatory cutoff 15 ng/mL
- Pathologist Toxicology Remark – interpreted against standard drug-of-abuse reference intervals
Department
Methodology
Sample Required
Preparation
Schedule Report
24 Hours
Emergency Report
Yes
Frequently Asked Questions
What does the marijuana THC urine test detect?
It detects THC-COOH, the primary inactive metabolite of delta-9-tetrahydrocannabinol, which accumulates in urine after cannabis use and indicates prior exposure rather than current intoxication.
How long does THC remain detectable in urine?
Detection windows vary with usage frequency — occasional users may test positive for 3–7 days, regular users for 7–21 days, and chronic heavy users for 30 days or longer after last use.
Is fasting required for this test?
No, fasting is not required. A random urine sample is acceptable and commonly collected for drug-of-abuse screening.
Can secondhand smoke cause a false positive?
Passive exposure in poorly ventilated spaces can rarely produce low-level positives near the cutoff. Confirmatory testing by GC-MS eliminates false positives from cross-reacting substances.
Do medications interfere with THC screening?
Certain NSAIDs (ibuprofen, naproxen), proton pump inhibitors, and H2 blockers have been reported to cause false positives on immunoassay screens. Dr. Patho Labs uses confirmatory testing to ensure accurate results.
How to access the report?
Verified PDF report is available within 24 hours via www.drpatholab.in or by WhatsApp/Email.
Test Description
Test Code
M05
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